CN102648860A - Vibratory anti-noise electronic stethoscope - Google Patents
Vibratory anti-noise electronic stethoscope Download PDFInfo
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- CN102648860A CN102648860A CN2012101184179A CN201210118417A CN102648860A CN 102648860 A CN102648860 A CN 102648860A CN 2012101184179 A CN2012101184179 A CN 2012101184179A CN 201210118417 A CN201210118417 A CN 201210118417A CN 102648860 A CN102648860 A CN 102648860A
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- electronic stethoscope
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Abstract
A vibratory anti-noise electronic stethoscope comprises an auscultatory head, a resonant cavity, a three-way catheter and an earplug catheter, wherein the auscultatory head comprises a shell and a vibration sensor; the vibration sensor is connected with an amplification circuit; the amplification circuit is connected with a loudspeaker; the loudspeaker is arranged inside the resonant cavity; the resonant cavity is arranged inside a barrel body; the barrel body is connected with an upper cover; a three-way catheter faucet is formed inside the upper cover; and the three-way catheter faucet is connected with the three-way catheter. The vibratory anti-noise electronic stethoscope replaces the auscultatory body of the conventional stethoscope with the electronic vibration sensor, directly converts vibration of an auscultatory part into an electrical signal, amplifies the electrical signal by the amplification circuit, outputs the electrical signal to the loudspeaker, arranges the loudspeaker inside the resonant cavity and transmits sound to two ears of medical personnel through the three-way catheter and the earplug catheter in the conventional stethoscope, so that outside sound can be completely shielded, the using way meets the traditional auscultatory habits, noises can be eliminated in the power amplifying process, and auscultatory sound is pure without interfering sound and background noise.
Description
Technical field:
The present invention relates to the mankind life article, relate in particular to medical apparatus and instruments, particularly a kind of vibration type antinoise electronic stethoscope.
Background technology:
Stethoscope because small and exquisite, cost is low, easy to usely directly have the characteristics that noinvasive detects again, so accepted by the patient easily, is doctor's indispensable instrument.Stethoscope is realized multiple diagnostic function, as is used for listening heart rate, hear sounds and vascular murmur etc., can also be used to listening the respiratory murmur of pulmonary, differentiates pulmonary lesion, can also be used to the hear sounds of auscultation fetus etc., in addition, measures blood pressure and also be unable to do without stethoscope., in the prior art, stethoscope can be divided into two types: one, mechanical: listening the inner spiral wavy texture of making of body, forming the multichannel acoustic that directly resonates, can avoid tradition to listen the indirect noise that has been produced when twice compressional vibration is transaudient in the body; Two, electrical type: be divided into analogue signal output and digital signal output again; Analogue signal output does not change traditional auscultation mode; Just amplify through sound and increase definition, digital signal output is analyzed through computer or microprocessor processes, directly is presented at the result on the screen.But mechanical still electrical type stethoscope all stresses the processing to sound, and vibration signals still adopts the conductance pick off, and sound conducts in stethoscope through air, therefore all is difficult to airborne to external world sound wave interference and removes.Because extraneous sound wave is complicated, have high frequency, low frequency, also the broadband arranged.Especially under outdoor environment or special environment, such as in the cabin, in the cabin, the treatment of operation occasion etc.These sound are superimposed upon on the hear sounds can't filtering, influences the auscultation effect.
Summary of the invention:
The object of the present invention is to provide a kind of vibration type antinoise electronic stethoscope, described this vibration type antinoise electronic stethoscope will solve that stethoscope receives the interferential technical problem of extraneous sound wave in the prior art.
This vibration type antinoise electronic stethoscope of the present invention comprises an auscultation head, a threeway conduit, two earplug conduits and two earplugs, an end of described two earplug conduits respectively with described threeway conduit in two-port be connected; Described two earplugs are separately positioned on the other end of two earplug conduits; Wherein, described auscultation head comprises a shell and a vibrating sensor, and described vibrating sensor is arranged in the described shell; Be connected with signal conductor on the vibrating sensor; Described signal conductor is connected with an amplifying circuit, and described amplifying circuit is connected with power supply and speaker, and described speaker is arranged in the organ for resonance; Described organ for resonance is arranged in the cylindrical shell; Described cylindrical shell is connected with a loam cake, be provided with a threeway conduit in the described loam cake and interrupt, described threeway conduit interrupt with described threeway conduit in port of residue be connected.
Further, the periphery of described signal conductor is surrounded by a conduit, and an end of described conduit is connected with the shell of auscultation head, and the other end of conduit is connected with described cylindrical shell.
Further, described amplifying circuit and power supply all are arranged in the organ for resonance.
Further, the end face of described speaker is parallel adjacent with the end face of described loam cake, and speaker and loam cake are coaxial.
Further, described power supply is made up of lithium battery.
Further; The front end face of the shell of auscultation head is open, and described vibrating sensor includes a highly sensitive vibrating diaphragm, and described vibrating diaphragm is arranged in the opening of an auscultation shell front end face; The rear side of vibrating diaphragm is connected with spring, and described spring is connected with shell.
Further, described spring is biased in auscultation shell front end face position slightly forward with vibrating diaphragm.
Further, described vibrating diaphragm is made up of piezoelectric diaphragm.
Further; Described amplifying circuit comprises preamplifier, two-stage amplifier, power amplifier and audio output port; The input of described preamplifier be connected with described vibrating sensor through described signal conductor; The outfan of preamplifier is connected with the input of described two-stage amplifier; The outfan of two-stage amplifier is connected with the input of described power amplifier, and the outfan of power amplifier is connected with described audio output port, and audio output port is connected with described speaker.
Further, described amplifying circuit comprises one second audio output port.
Operation principle of the present invention is: during use vibrating sensor directly is attached on the auscultation position; The vibration at auscultation position is directly delivered to vibrating sensor; Vibrating sensor produces the signal of telecommunication, is delivered to amplifying circuit through signal conductor, and amplifying circuit outputs to speaker after signal is amplified; Speaker is sounded in organ for resonance, and sound is delivered to diagnosis and treatment personnel's ears through threeway conduit and two earplug conduits.Can connect sound pick-up outfit on second audio output port, be convenient to playback.Can add denoising Processing in the amplifying circuit, to eliminate background noise.Organ for resonance can be simulated hear sounds in intrathoracic sympathetic response effect.
The present invention and prior art are compared, and its effect is actively with tangible.The present invention replaces the body of listening in traditional stethoscope with the electronics vibrating sensor; The vibration at auscultation position is directly changed into the signal of telecommunication, outputs to speaker after utilizing amplifying circuit that signal is amplified, speaker is arranged in the organ for resonance; Transmission sound is arrived diagnosis and treatment personnel's ears through the threeway conduit in traditional stethoscope and two earplug conduits again; Can shield fully by sound to external world, occupation mode meets traditional auscultation custom of doctor, in the power amplification process, eliminates noise; Auscultated sound is pure, does not have interference tones and background noise.
Description of drawings:
Fig. 1 is the structural representation of vibration type antinoise electronic stethoscope of the present invention.
Fig. 2 is the structural representation of the auscultation head in the vibration type antinoise electronic stethoscope of the present invention.
Fig. 3 is the left view of the auscultation head in the vibration type antinoise electronic stethoscope of the present invention.
Fig. 4 is the structural representation of the organ for resonance in the vibration type antinoise electronic stethoscope of the present invention.
Fig. 5 is the right view of the organ for resonance in the vibration type antinoise electronic stethoscope of the present invention.
Fig. 6 is the schematic diagram of the amplifying circuit in the vibration type antinoise electronic stethoscope of the present invention.
The specific embodiment:
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6; Vibration type antinoise electronic stethoscope of the present invention comprises 6, one threeway conduits of an auscultation 3, two earplug conduits 1 and two earplugs, and an end of described two earplug conduits 1 is connected with two-port in the described threeway conduit 3 through connection tube 2 respectively; Described two earplugs are separately positioned on the other end of two earplug conduits 1; Wherein, described auscultation 7 comprises a shell 8 and a vibrating sensor 20, and described vibrating sensor 20 is arranged in the described shell 8; Be connected with the signal conductor (not shown) on the vibrating sensor 20; Described signal conductor is connected with an amplifying circuit, and described amplifying circuit is connected with power supply 17 and speaker 17, and described speaker 17 is arranged in the organ for resonance 5; Described organ for resonance 5 is arranged in the cylindrical shell 14; Described cylindrical shell 14 is connected with a loam cake 13, is provided with a conduit in the described loam cake 13 and interrupts 12, and described conduit is interrupted and 12 is connected with port of residue in the described threeway conduit 3 through conduit 4.
Further, the periphery of described signal conductor is surrounded by a conduit 6, and the shell 8 of an end of described conduit 6 and auscultation 7 is connected, and the other end of conduit 6 is connected with described cylindrical shell 14.
Further, amplifying circuit is arranged on the circuit board 16, and circuit board 16 all is arranged in the organ for resonance 5 with power supply 17.One end of cylindrical shell 14 is provided with the joint 18 of connecting duct 6.
Further, the end face of described speaker 14 is parallel adjacent with the end face of described loam cake 12, and speaker 14 is coaxial with loam cake 12.
Further, described power supply 17 is made up of lithium battery.
Further; The front end face of the shell 8 of auscultation 7 is open, and described vibrating sensor 20 includes a vibrating diaphragm 9, and described vibrating diaphragm 9 is arranged in the opening of shell 8 front end faces; The rear side of vibrating diaphragm 9 is connected with spring 10, and described spring 10 is connected with shell 8.The rear end face of shell 8 is provided with the joint 11 of connecting duct 6.
Further, described spring 10 is biased in shell 8 front end faces position slightly forward with vibrating diaphragm 9.
Further, described vibrating diaphragm 9 is made up of piezoelectric diaphragm.
Further; Described amplifying circuit comprises preamplifier 21, two-stage amplifier 22, power amplifier 23 and audio output port 24; The input of described preamplifier 21 be connected with described vibrating sensor 20 through described signal conductor; The outfan of preamplifier 21 is connected with the input of described two-stage amplifier 22; The outfan of two-stage amplifier 22 is connected with the input of described power amplifier 23, and the outfan of power amplifier 23 is connected with described audio output port 24, and audio output port 24 is connected with described speaker 15.
Further, described amplifying circuit comprises one second audio output port 25.
The operation principle of present embodiment is: during use vibrating sensor 20 directly is attached on the auscultation position; The vibration at auscultation position is directly delivered to vibrating sensor 20; Vibrating sensor 20 produces the signal of telecommunication, is delivered to amplifying circuit through signal conductor, and amplifying circuit outputs to speaker 15 after signal is amplified; Speaker 15 is sounded in resonator 19, and sound is delivered to diagnosis and treatment personnel's ears through threeway conduit 3 and two earplug conduits 1.Can connect sound pick-up outfit on second audio output port 25, be convenient to playback.Can add denoising Processing in the amplifying circuit, to eliminate background noise.Organ for resonance 4 can be simulated hear sounds in intrathoracic sympathetic response effect.
Concrete, an auscultation slim rubber elastic membrane wrapping and encapsulating of 7 outer employings.
When vibrating sensor 20 touches the human body thoracic wall; Receive the weak heart beat vibration signal, this signal produces the amplifying signal of certain amplitude through the preamplifier 21 of the full width of cloth of low-power consumption; But sort signal is not enough to promote power amplifier 23 carries out power amplification; Also need carry out secondary through two-stage amplifier 22 and amplify, just can be sent to power amplifier 23 through the secondary amplifying signal and carry out power amplification, the audio signal after the power amplification has two-way output; The output of one road audio frequency promotes speaker 15 sounding, and another road audio frequency output provides record to use.Power amplifier 23 is through denoising Processing, and its background noise is very low, in earrings 1, can't hear any " " sound, makes hear sounds very pure, does not disturb.Circuit adopts low power dissipation design, and power output is very little, so very power saving uses lithium battery just can support long work.
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments, and other any do not deviate from the change of being done under spirit of the present invention and the principle, modifies; Substitute; The substitute mode that all should be equivalence is simplified in combination, is included within protection scope of the present invention.
Claims (10)
1. vibration type antinoise electronic stethoscope; Comprise an auscultation head, a threeway conduit, two earplug conduits and two earplugs, an end of described two earplug conduits respectively with described threeway conduit in two-port be connected, described two earplugs are separately positioned on the other end of two earplug conduits; It is characterized in that: described auscultation head comprises a shell and a vibrating sensor; Described vibrating sensor is arranged in the described shell, is connected with signal conductor on the vibrating sensor, and described signal conductor is connected with an amplifying circuit; Described amplifying circuit is connected with power supply and speaker; Described speaker is arranged in the organ for resonance, and described organ for resonance is arranged in the cylindrical shell, and described cylindrical shell is connected with a loam cake; Be provided with a threeway conduit in the described loam cake and interrupt, described threeway conduit interrupt with described threeway conduit in port of residue be connected.
2. vibration type antinoise electronic stethoscope as claimed in claim 1 is characterized in that: the periphery of described signal conductor is surrounded by a conduit, and an end of described conduit is connected with the shell of auscultation head, and the other end of conduit is connected with described cylindrical shell.
3. vibration type antinoise electronic stethoscope as claimed in claim 1, it is characterized in that: described amplifying circuit and power supply all are arranged in the organ for resonance.
4. vibration type antinoise electronic stethoscope as claimed in claim 1 is characterized in that: the end face of described speaker is parallel adjacent with the end face of described loam cake, and speaker and loam cake are coaxial.
5. vibration type antinoise electronic stethoscope as claimed in claim 1, it is characterized in that: described power supply is made up of lithium battery.
6. vibration type antinoise electronic stethoscope as claimed in claim 1; It is characterized in that: the front end face of the shell of auscultation head is open; Described vibrating sensor includes a vibrating diaphragm; Described vibrating diaphragm is arranged in the opening of an auscultation shell front end face, and the rear side of vibrating diaphragm is connected with spring, and described spring is connected with shell.
7. vibration type antinoise electronic stethoscope as claimed in claim 6 is characterized in that: described spring is biased in auscultation shell front end face position slightly forward with vibrating diaphragm.
8. vibration type antinoise electronic stethoscope as claimed in claim 6, it is characterized in that: described vibrating diaphragm is made up of piezoelectric diaphragm.
9. vibration type antinoise electronic stethoscope as claimed in claim 1; It is characterized in that: described amplifying circuit comprises preamplifier, two-stage amplifier, power amplifier and audio output port; The input of described preamplifier be connected with described vibrating sensor through described signal conductor; The outfan of preamplifier is connected with the input of described two-stage amplifier; The outfan of two-stage amplifier is connected with the input of described power amplifier, and the outfan of power amplifier is connected with described audio output port, and audio output port is connected with described speaker.
10. vibration type antinoise electronic stethoscope as claimed in claim 9 is characterized in that: described amplifying circuit comprises one second audio output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101184179A CN102648860A (en) | 2012-04-20 | 2012-04-20 | Vibratory anti-noise electronic stethoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101184179A CN102648860A (en) | 2012-04-20 | 2012-04-20 | Vibratory anti-noise electronic stethoscope |
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| CN102648860A true CN102648860A (en) | 2012-08-29 |
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| CN2012101184179A Pending CN102648860A (en) | 2012-04-20 | 2012-04-20 | Vibratory anti-noise electronic stethoscope |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104146727A (en) * | 2014-08-27 | 2014-11-19 | 苏州承乐电子科技有限公司 | Resonance type two-sided stethoscope |
| WO2018053992A1 (en) * | 2016-09-26 | 2018-03-29 | 珠海爱珂索移动医疗科技有限公司 | Vibration recovery method suitable for stethoscopes |
| US10164688B2 (en) | 2014-04-30 | 2018-12-25 | Apple Inc. | Actuator assisted alignment of connectible devices |
| US10603690B2 (en) | 2013-03-11 | 2020-03-31 | Apple Inc. | Portable electronic device using a tactile vibrator |
| US11334164B2 (en) | 2019-07-22 | 2022-05-17 | Apple Inc. | Portable electronic device having a haptic device with a moving battery element |
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| WO2001097675A2 (en) * | 2000-06-22 | 2001-12-27 | Kol Medical Ltd. | Chest piece for stethoscopes |
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Patent Citations (9)
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| US6726635B1 (en) * | 2000-05-12 | 2004-04-27 | Lasala Anthony F. | Cardiac impulse detector |
| WO2001097675A2 (en) * | 2000-06-22 | 2001-12-27 | Kol Medical Ltd. | Chest piece for stethoscopes |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10603690B2 (en) | 2013-03-11 | 2020-03-31 | Apple Inc. | Portable electronic device using a tactile vibrator |
| US10164688B2 (en) | 2014-04-30 | 2018-12-25 | Apple Inc. | Actuator assisted alignment of connectible devices |
| CN104146727A (en) * | 2014-08-27 | 2014-11-19 | 苏州承乐电子科技有限公司 | Resonance type two-sided stethoscope |
| WO2018053992A1 (en) * | 2016-09-26 | 2018-03-29 | 珠海爱珂索移动医疗科技有限公司 | Vibration recovery method suitable for stethoscopes |
| US11334164B2 (en) | 2019-07-22 | 2022-05-17 | Apple Inc. | Portable electronic device having a haptic device with a moving battery element |
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Application publication date: 20120829 |